class_docstr: A simple counter
code: def success_rate(self):
      count = 0
      for v in self._values:
          if v > 35.0:
              count += 1
      return float(count) / len(self._values)
  
imports: import csv
  import numpy
  import tensorflow
  import os
  import six
label_desc: Use image node_id 9 for calling the StatCounter obj's underlying member method code with example usage: obj.success_rate() and returns: unknown